61830036 has 18 divisors (see below), whose sum is σ = 156292682. Its totient is φ = 20610000.

The previous prime is 61830029. The next prime is 61830133. The reversal of 61830036 is 63003816.

It can be written as a sum of positive squares in only one way, i.e., 50979600 + 10850436 = 7140^2 + 3294^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×61830036² = 7645906703522592, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 61829991 and 61830009.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 858715 + ... + 858786.

Almost surely, 2^61830036 is an apocalyptic number.

It is an amenable number.

61830036 is an abundant number, since it is smaller than the sum of its proper divisors (94462646).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61830036 is a wasteful number, since it uses less digits than its factorization.

61830036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717511 (or 1717506 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 61830036 is about 7863.2077423911. The cubic root of 61830036 is about 395.4271638015.

The spelling of 61830036 in words is "sixty-one million, eight hundred thirty thousand, thirty-six".